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From: David Marchand <david.marchand@redhat.com>
To: Kamaraj P <pkamaraj@gmail.com>
Cc: Thomas Monjalon <thomas@monjalon.net>, dev <dev@dpdk.org>,
	 Anatoly Burakov <anatoly.burakov@intel.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	ksimha@cisco.com,  kalas@cisco.com, seveluch@cisco.com,
	 "techboard@dpdk.org" <techboard@dpdk.org>,
	hpai@cisco.com, ppitchai@cisco.com,
	 Aaron Conole <aconole@redhat.com>
Subject: Re: [dpdk-dev] Running DPDK application with non-previlege mode
Date: Tue, 31 Aug 2021 17:34:52 +0200	[thread overview]
Message-ID: <CAJFAV8x2Jgp056xSkonmWfBu+-7to=MpN0XAUY7610k-bXERKg@mail.gmail.com> (raw)
In-Reply-To: <CAG8PAaqaGCh_2uJhK=DV9eU66wnyd-VkpL3r8uocOzcXRx+mwQ@mail.gmail.com>

On Tue, Aug 31, 2021 at 5:27 PM Kamaraj P <pkamaraj@gmail.com> wrote:
>
> Hi Thomas,
> We are trying with the IGB_UIO driver in our DPDK application.

Running with igb-uio as a non priviledged user is not possible (or, at
best, makes little sense).


> Is there any documentation where we need to start to run a DPDK application with minimal system capability?
> Also please let us know if there is any known dependency with DPDK versions (dpdk application with 18, 19.11 versions etc) when we run with sys capabilit.
>
> Hi David,
> Can you please share with us the pointer for OVS integration(DPDK running as non-privileged mode ?)

I don't have a full list, here is what I have in mind.

For non mellanox devices, you'll have to rely on vfio-pci bound
devices and setup access to those fds.
https://github.com/openvswitch/ovs/blob/master/rhel/usr_lib_udev_rules.d_91-vfio.rules

For mellanox devices and some parts of dpdk, you need (quite) some capabilities:
https://github.com/openvswitch/ovs/blob/master/lib/daemon-unix.c#L812

There are also hugepages accesses to consider:
https://github.com/openvswitch/ovs/blob/master/rhel/usr_lib_systemd_system_ovs-vswitchd.service.in#L20

There are selinux considerations too.


-- 
David Marchand


  reply	other threads:[~2021-08-31 15:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30  7:37 [dpdk-dev] Running DPDK application without " Kamaraj P
2021-08-30  7:52 ` [dpdk-dev] Running DPDK application with " Kamaraj P
2021-08-30  8:37   ` Kamaraj P
2021-08-30 11:26   ` Ferruh Yigit
2021-08-30 11:45     ` Kamaraj P
2021-08-30 12:05       ` Thomas Monjalon
2021-08-30 11:59     ` Thomas Monjalon
2021-08-30 12:06       ` David Marchand
2021-08-31 15:27         ` Kamaraj P
2021-08-31 15:34           ` David Marchand [this message]
2021-08-31 16:20             ` Kamaraj P
2021-08-31 19:44               ` Bruce Richardson
2021-09-01 16:09                 ` Kamaraj P
2021-09-01 17:52                   ` Thomas Monjalon
2021-09-05 16:54                     ` Kamaraj P
2021-09-06 14:02                       ` Kamaraj P
2021-08-31 17:49             ` Aaron Conole

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